Substituting and evaluating
Essential Mathematics Year 7
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Videos in this series
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  The learning for the lesson
  Footie or soccer?
  Letters are really just in the dinner queue for numbers
  Example 1
  Examples of how to use BIDMAS
  Formula, Substitute and Solve (FSSSSSSS)
  Example 2
  Example 3
  A slightly harder example
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This video continues the series on Algebra and looks at what it means to substitute into an expression (or equation!) and how to find the value by using BIDMAS/BODMAS. There are lots of worked examples and lots of theory to help you completely understand why you are doing this. There is also reference to Soccer and Footie!

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year 7 math year 7 maths year 7 videos grade 7 math substituting and evaluating substituting into expressions evaluating expressions